压力分散型抗浮锚杆技术及其工程应用  

PRESSURE-DISPERSIVE ANTI-FLOAT ANCHOR TECHNIQUE AND ITS APPLICATION TO ENGINEERING

作　　者：柳建国[1] 吴平[1] 尹华刚[2] 钟冬波[1] 李书伟[1] 周海林[1] 李志强[2] 徐寒[1] 

机构地区：[1]中冶集团建筑研究总院,北京100088 [2]北京特种工程设计研究院,北京100028

出　　处：《岩石力学与工程学报》2005年第21期3948-3953,共6页Chinese Journal of Rock Mechanics and Engineering

摘　　要：结合实际工程,对压力分散型抗浮锚杆试验、设计、施工及检测方面的技术难点进行了深入的探讨。压力分散型锚杆,特别是U型环绕承载体锚杆具有良好的耐久性,锚固效率高,有利于地下结构的应力与变形协调,减少工程造价,作为永久性抗浮锚杆具有明显的技术优势。压力分散型锚杆仅在设计荷载下各单元锚杆承担相同的荷载,压力分散型锚杆的张拉试验应采用等荷载同步张拉方法。Combining a practical case, the technique of pressure dispersive anti-float anchor on experiment, design, construction and examination is studied. The pressure-dispersive anchor, especially the U-shaped anchor surrounding load body has good endurance, high anchor efficiency, and advantage of stress and deformation coordination of the underground structure and reduces the structure-building price. It has obvious technique advantage as the permanent anti-float anchor. Only at design tensile load does each unit of the pressure-dispersive anchor undertake the same tensile load; the identical load and synchronous tension method should be adopted to tension test of pressure-depressive anchor.

关 键 词：岩土工程 压力分散型锚杆 抗浮 U型环绕承载体锚杆 耐久性 等荷载同步张拉 

分 类 号：TU443[建筑科学—岩土工程]